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my name is Natalia hmm I've been in the industry for the last 15 years now working for pattern of computer school I'm pretty happy in here and let's just cover the major things that is going on on the market because if you happen to have a job in a mobile application testing then you'll have to go a little bit inside the industry news and regulations and certifications so what is the biggest news right now on the market on the market we have some some sue back up you know probably some of you even have this devices so the original our problem was with the galaxy note 7 in which Samsung released a couple of months ago and the biggest issue was battery that was excuse me exploding and so they didn't list a fix which keeps this battery at 60% or the highest but it didn't help too much so the galaxy s aged a7 age was released later as a replacement and also had the same problem so right now as the Sam Soon is literally under fire for the exploded batteries and please while I'm saying this if you have if you own this device if somebody who you know having this device please please return it to Samsung for the full refund it's a safety issue and please do yourself a favor your friends a favor we often leave with our phones we sleep with our phones and our we usually have it next to us and if there is a problem with the battery then please return it so Apple news like a few runs back Apple released the iPhone 7 plus that had some pretty sophisticated features and what they announced is the iPhones they called iPhone 7 and 7 plus why I'm covering this because if you happen to be in the mobile application testing then you will have to know the latest trends the latest features for iPhone 7 and 7 plus the major feature that it's lacking a headphone jack so the new iPhone have a revised home button with force sensitivity which will vibrate to give feedback it's water-resistant the Plus model of the new iPhone included dual lens camera to take professional great photos ah a new Apple watch called Apple watch series 2 which include GPS Pokemon go is available for Apple watch an update on how Apple music is performing and three students I work suit of productivity dance so basically there is a whole bunch of functionalities that Apple implemented with the new phones but at the same time I personally found at least few features that were basically already in Android and it's a dual real cameras on iphone 7 plus which is very very resembles the Android and the water and dust resistance which was also was on Android stereo speakers and the quad core chipset so there are many many features if you are interested about that just google it and see what actually Apple implemented that iPhone had so let us start with our lecture and we go to cover most of the networking and the mobile ecosystem so since you guys online and we don't have like a direct direct communication with you we will have to communicate through the Google Drive account and Google Mail so it required to have we need to have a flash drive and to do the testing and actually learn you have to have a mobile phone or iPhone or Android whatever you have next to you because we're gonna have some exercises that I would ask you to do and of course the desire to have your purpose to learn and be ready to go out of a comfort zone because this is what the QA field is all about in motivation to become independent but reliable QA and since you guys are online is actually the very very good thing that you can do something solo so if you have any questions please don't hesitate to ask me to send me via Skype and I will give you instructions a little bit later and please don't take everything for granted you paid for it but it's our obligation and our willingness for you to learn and to become who you want to become so this is basically the overview of the mobile ecosystem since this is my online class we are we gonna go with our regular piece and we will cover as much as we can for this first hour we have 14 hours ahead of us not today what we're gonna do we're gonna go through some lectures and we're also gonna have a project it's a live project I'm gonna give you the multimedia project to test it's pretty fun you guys gonna learn how to work on the media files like a video audio and image files it's a clip mix this application is a native application I will explain to you later what native hybrid and web application is if you don't know you're going to learn it are we gonna have a live bug tracking database Bugzilla where you can file your findings and we're gonna report I'm gonna ask you at probably at our lesson 3 to collaborate with the bug tracking database and to verify whatever the previous students left for you and it's gonna be lots of individual work but for now we have to go through the basic the core stuff that we have to learn before their actual testing started so over you is gonna be we're gonna start from a mobile world statistics because I think it's important for you to know and it does not really matter what background you have and I always tell my students I especially when I'm in class it's much easier to interact with students and I ask their what background do you have and most people they don't have IT background but they do backgrounds in the finances the customer relations chemistry biotech anything and I said do you think you are abandoning your skills your background and most answers are yeah you know what can we do without education without background and I said I look at this differently I look at this that you are learning new tools how to use your background in the future and I will explain to you why because mobile technology is everywhere everything is going mobile so if the person is having a customer relation there is a CRM database customer relations management if the person is in biotech there is plenty plenty of work in a testing field to test the chemicals our finances there is a banking applications I mean the world is going mobile and there is no way we're going back so you are basically extending your knowledge and learning and new tools how to use your background so today are we going to start from the mobile world statistics and as you can see the top apps in North America right now by installs and by daily active usage is the facebook Messenger Instagram actually everything you see in here I bet like 80% of you guys can recognize your activity look at this by daily use active usage the candy crush saga actually this is the biggest biggest app that was successfully launched in 2012 and it was the biggest heat since the Angry Birds and trust me also it's free app these people made billions and I'm repeating billions of dollars over the years because of the the power balls that people are buying from them to complete the levels so that was a bigger success in the app history and it's also daily usage of these apps so Facebook whatsapp messenger we use it every day we communicate with our relatives with some pictures we talk to them and this is basically the the apps that are used daily and people are spending time on it so we have also statistics for the fastest growing apps categories and as you can see I had a data for 2015 versus 2014 because when we are at the end of the year but the statistics are not released yet so as you can see the personalization our apps is growing 332 % that a lot because we want app to suit our needs we personalized app apps to use for our daily activities we need them to to be productive so we also abandoning news and magazines are in order to have it online we wake up in the morning the first thing we do we get to our phone to see what's going on in the world utilities and productivity lifestyle and shopping I bet that most people are shopping online I personally didn't go to the store for a long time Travel navigation we order our tickets and we're just looking for the best deals there are so many apps that are giving us an opportunity to compare the prices sports health and fitness where where are the wearable devices to check out blood pressure to measure our steps and to just monitor our health otherwise messaging and social is on the rise 51% we communicate with our peers with our colleagues even if they in the next cubicle we send them an email email a text and this is what we do we're bundling the postcards the letters we the post office is suffering losses it's just because we go we are going mobile music media and entertainment it's all on our phones we love them we treasure our albums with treasure our playlists we spend a lot of money to download the legal music or we don't spend money to download illegal music breaking the rules and the games are down why the games are down and this is simple explanation is because people are aiming for the games with the basic virtual reality features so or they go for set up boxes the experience they want to have is simply impossible or to do on the mobile phones because of the the games become so complicated the features of the games require the high-definition audio and video to get this experience so in this is the basically the statistics there was a survey in 2015 so they asked about thousand people to compare a mobile app source of mobile websites and as you can most people reported it's more convenient the apps and welcome the Union faster easier to browse and it's a better user experience it's easier to check back and count so I'm pretty sure most of us are going mobile for banking and easier to shop like I mentioned already in my previous slide that we are too lazy we enjoy the convenience of shopping from home three percent of the people told they don't care no preference are eleven percent and just one percent out of this people told that they prefer mobile websites so this is fine it's their preference but the rest of us we are enjoying mobile actually right now all the companies who are reputable they are having their own version of app from the website so they don't want to lose money and it's a lot of money and they develop their own mobile apps to not to lose this money so why I'm giving you the slide what is putting the strain on a mobile networks because there is a regulation from the industry standard to check your app that you're going to be testing while you are connected to the network traffic so you will have to test your application and we will have later the test cases and test Suites - OH check our app against the YouTube and Facebook and Google and Netflix and Instagram so it's gonna be a lot of work because industry dictates the your application to be running resuming and stopping under certain condition and behave a certain way so all of this I promise you we want to learn during our 15 hours of mobile application testing so this is in the internet usage it's for mobile desktop and other connected devices and if you can see there is a plenty of plenty of mobile mobile application you users and time spent per adult per day with digital media this is the comparison from 2004 2008 and 2015 and year-to-date and you can see that the mobile application users are you know consistently rising their numbers so the most important is our carriers and service providers this is what what operates our phones this is hoop this is people who provide the service we can love them we can hate them but when we're choosing our phones we basically rely on the scariest and service providers so we just get a small overview of what the United States have and we're going to cover only the United States statistics because in Europe in Asia the statistics are different and I will explain to you why and you will understand why a little bit later after we complete a few more slides so there are basically five major carriers and service providers right now in the United States it's us celery Verizon Wireless 18 teen t-mobile I'm pretty sure each of you have the same you know one of these providers who is giving the service on your phone this is the statistics of the subscriber data in millions and you can see that the Verizon Wireless is pretty much leading the the market with one forty one point four million subscribers then followed by a teensy mobility and the t-mobile and Sprint and your seller so Verizon Wireless in they're located in New Jersey and it's a subsidiary of the Verizon Communications and 18c mobility is quartered in Atlanta Georgia and the subsidiary of AT&T incorporation you probably gonna be surprised the t-mobile us delegate in Washington is a subsidiary of German communicate telecommunication company t-mobile international AG and spring day in Kansas and the majority of Sprint owned by Japanese company Softbank corporation so and your seller it's a Purina in the United States they're in Illinois and the United States cell or a copper corporation so just for your information this is what we have right now and when you gonna do your testing you're gonna have a device fragmentation what is device fragmentation you're going to be testing devices with different screen sizes with different providers with a different technology i with a different iOS or os so there's it so much work to do and to make sure that the application that you are going to be testing is compatible to majority of the devices later with our lectures I'm going to show you and tell you how to simulate the device that you don't have there is a special tools to do it the simulation of majority devices could be found in Xcode or Android studio it's this is the tools where these applications are developed and we're going to cover that too little bit later so the gears and service providers they have their own responsibilities these those seller towers they make services available for mobile subscribers the IP reseller network and they handling billing support in sales every service provider is responsible for these four activities this is how we get our service and our network quality in the connectivity this one the network is one of the biggest probably lectures that and modules that we're going to be covering and I'm going to explain to you the types of the networking that we currently have so the seller and network architecture is consist basically over five major point it's a mobile equipment and this refers to the physical phone itself so you have the phone and the phone is operating on a cell network there is a small picture at the bottom and you can see how the network architecture operates so it's basically have a base transceiver station and it's just a simple antenna that you see installed on the top of the tower can you see it the tower and the base transceiver station is the mobile phone access point to the network so basically it's responsible for carrying out radio communications between the network and the mobile phone and what is the cell while we call our mobile device as a cell phone so what is the cell is a base station it's a transmitter that having a number of the radio frequency channels and it's called the cell so each cell covers the limited number of mobile subscribers within the cell boundaries in the coverage area this is basically dictates the providers how how many subscribers are covered so it's cell size and capacity determines the number of cells available to cover geographic area in a base station controller it basically controls multiple base transceiver station mobile switching center is the heart of GSM network we're gonna cover gsm network in the next slide so it handles routing consetta basic switching functions and so on so I see is our network architecture simplified so we need cell phone just the simple radio transmitter that sends signals to the towers we need cell-site towers and you probably you know when you go in the field you see lots and lots of this seller towers and that's how it's the this is the connector that the tower communicates with this Hobbs would either connect to other hubs or you set alight dishes to provide network connection back to the phone via the South Tower so three components simplifies for the seller and network architecture okay nice now we are getting to the point with with the networking gsm and cdma they're basically two two systems to network systems for networking assistance for communication so GSM standards is a global system for mobile co munication and it operates by eighteen PM t-mobile so basically the service that they provide is very very similar to the other Network CDMA they have voice calling text messaging did the service just whatever we use every day whatever feature you have on your smart phone the biggest difference for GSM is the SIM card and a SIM card that could be switched to another phone so what is SIM card subscriber identity module this is how we call the SIM card so and um I would be wrong if I won't tell you that basically the whole world is operating on GSM network except the United States in the United States the CDMA network is bigger than GSM so CDMA network is operated by Sprint Verizon and u.s. seller CDMA stands for code division multiple-access they basically are the difference between CDMA and GSM is the CDMA uses the packet switching instead of a circle switching so as you can see the service is the same with just like in GSM but the features it's the CDMA network is a five times up to GSM the capability so it's it is more secure because each phone is securely locked it's used by military and the Qualcomm actually the company here in Silicon Valley I pass it to almost every day Qualcomm is a monopolist and for many many years it designs the chips for CDMA air interface so another difference from GSM that the CDMA phones cannot roll internationally northern Kansas with voice and data at the same time like gsm handset and once you have CDMA you pretty much locked to your carrier if you travel overseas a lot if you are using your phone a lot while traveling just make sure that you have a GSM network and the phone that is using it because also c GMA network could be covered from your provider the connection the quality of the service could be different in a poorer side you know and so use the gsm phones are them the CDMA when you are traveling if you have a chance so I'm this slides I'm sorry guys they were created for my in class but I'm going at the end of the class I'm gonna send you a link to this YouTube video so you can listen for the explanation maybe a little bit detail explanation of for the difference from CDMA versus GSM so LTE LTE probably you guys also heard this term it's a it stands for long term evolution it's developed by the third generation partnership project 3gpp and right now LTE is on the top of the 4G G stands for generation technology and it's used for smartphones tablets netbooks notebooks and the wireless hotspots we're gonna talk about it a little bit more but this is a pretty much here in the United States if you're having the quality of service then the LTE is pretty much in Babbitt to your 4G technology and your phone's so satellite is a part of the network believe it or not and compared to other forms of wireless internet service satellite enjoy is the advantage of availability because it's only requiring small dish antenna satellite modem and subscription plan satellite works in almost all newer areas and not serviced by other technologies actually satellite are the first artificial satellite and I'm pretty sure there are lots of Russian guys here in the group it was used in Sputnik one and it started in 1957 and since then there are so many satellite large into orbit so we're basically talking about 24 satellites constantly surfacing around the orbit and let's just get a little bit more inside of the satellite what it is so satellite navigation there is a variation set not it means using a portable radio receiver to pick up speed of life signals from the orbiting satellites and the pretty interesting facts is that the best-known sat-nav system is your GPS right and it uses like I told you 24 active satellites day and night and it orbits the earth every 12 hours and GPS is owned by Department of Defense so it's they put a lot of money and in 1960 the Lockheed Martin developed the first GPS and it launched successfully and Lockheed Martin is one of the biggest companies that owned by Department of Defense so let's talk about the GPS GPS and satellites they always come together so the GPS device returns precise position navigation and timing information by receiving signals from a constellation of those 24 satellites and without satellites there would be no GPS service so GPS satellites powered by solar energy and it has a backup batteries on board to keep them running constantly especially and in case there's no solar power they still run so in 1978 the first GPS was officially launched by US Department of Defense actually all the Apollo spacecraft have this satellites and GPS onboard Wi-Fi Wi-Fi sometime refers as a wireless fidelity but it's just the the marketing term there is no official explanation what is wireless fidelity is so to us Wi-Fi is the Wi-Fi so if you ask somebody do we have wireless fidelity nobody is going to give you an answer and don't it's just for your information don't try to use it to prank your bodies but this is what it is so Wi-Fi it's uses radio waves to provide wireless high-speed Internet and network connections and Wi-Fi is the name of popular wireless network technology in they usually comply with the I square e 802.3 regulations I'm going to show you a little bit what is I square e 802 regulation this is basically the industry standards for the wireless technology and we'll see the difference between a b RG and at the end of this 802.1 the numbers you'll get the idea what it is so this is basically the Wi-Fi frequencies and we call this this technology I square e so it's AI e is a square three is a square in the industry we use I square e so as you can see we have a 802.2 11 a 802.2 levin b802 11 g + 8 0 2 11 and so the difference between these regulations is just the transmitting of data and the frequency level it's transmitting just meeting with so basically the lightest one is the a it can transmit data the frequency 11 at 5 gigahertz and be just transmit data at the frequency 11 at 2.4 gigahertz and actually 11g it transmits data 2.4 gigahertz but it has a capability to transmit a max of 54 megabits of data per second and the this is the more advanced advanced technology that is currently owned on the market it has the small letter n a0 2.0 Levin N and it's can transmit the maximum of 140 megabits of data per second so again guys it might be boring stuff right now but the main reason is when you're testing your devices and doesn't matter what you test you test web application or you test mobile application you have to know the industry standard and that's why we're suffering but we have to go through it it's gonna become a little bit easier and not as boring later I understand but we need to know it as soon as we can and just get it over with so hotspot is the our favorite kind of technology advanced you know especially when we had roaming on our devices hotspot was free we didn't have to pay for it it's basically a physical location where people may obtain the internet access typically using Wi-Fi technology via wireless local area network that we call WLAN and using your router connected to the Internet service provider so equipment is inexpensive and most right now especially most Wi-Fi hotspots remains free so a vulnerability can be a problem because there is no good coverage in the rural areas so but it's still free it's still very convenient and we are still looking for the connection when we are travelling pretty much so Bluetooth Bluetooth is another type of the network and Bluetooth is a wireless technology standard for exchanging data over short distances asure distances what we are talking about we are talking about about 30 feet and it was first coined the term by Karen Ashland in 1999 while working at our idea so Bluetooth is a wireless technology standard for exchanging data over short distances creating personal area networks pens we call it pens personal area networks were called pens with current levels of security so now comes the question how does the Bluetooth work so Bluetooth device uses radio waves instead of wires or cables to connect to a phone or computer so a Bluetooth product like a headset or watch contains tiny computer chip with the two with the Bluetooth radio and software that makes it makes easy to connect so when two goes to s devices want to talk to each other they need a top ear record total so what is the difference between Bluetooth and Wi-Fi so Bluetooth and Wi-Fi they're both methods that provide wireless communication but the difference between the two mainly stems from what are they designed to do and how they're used actually the main difference is that the Bluetooth is primarily used to connect the devices with cables while the Wi-Fi provides high-speed access to the Internet so this is pretty much simple and easy to understand so like I mentioned before that the maximum distance for Bluetooth network is about 30 feet ah it does not require too much power to be operated and you know that your Bluetooth devices are using a very very small batteries it is slow even compared to 802 11 B Network standard and there is no base station required for the Bluetooth communication between the device what's interesting I put the front back because I just recently discovered it and thought maybe it's gonna be fun to give it to my students that everybody know this Bluetooth symbol right so but not everybody know that this Bluetooth symbol is a buying drones it's a basically consists of two rooms that are connected together there and this is how the symbol came to the surface so runes are the Asian Norse letters and it it was fun to just discover this fun fact about the Bluetooth I didn't know until recently so let's just talk about the network broadband and the mobile of broadband is the marketing term term that we use for wireless Internet access and wireless one area network this is just another another term it's a general term used to describe the high-speed Internet access from mobile providers for portable devices the first wireless internet access became available in 1991 as a part of the second generation 2g of mobile phone technology actually before before the 2g came into the market there was no such a term as a generation so 1g fools it was just the phones there was no terminology so the generations come started from the second generation so in the cellar phones were largely inspired by landlines that are traditionally wired to the wall and it's basically to in a similar way until recently so once how how did it work so once a landline calls and process your line is blocked and you can use it for anything else and this is called circle switching and remember I was talking to you about the CDMA network how it works so it's basically replacing circuit switching to packet switching so the broadband is when you telephone one is effectively split in two lines a voice channel that work as before by circuit switching and a data channel that can constantly send the packets of gjett of data to or from your computer by packet switching we call it packet switching which is the very fast and efficient way in which data is sent across the internet so now you know the difference between packet switching and circuit switching and how the your network works and how mobile Broadway broadband works so let's just pick speeds experienced by user are also often limited by the capability of their smartphone or other mobile devices it's a game it depends on your provider it depends of their networking the mobile networking capability data transfer and speed and if they're having the glitches the slowdowns you are experiencing fully on your phones so we hate this when we cannot use our phone it's our life but it happens you know the technology the software breaks Hardware breaks they're using lots of servers they're using their capability and it's huge because we saw it earlier how many subscribers each provider has so it's hard to service every be patient maybe you know we can be after we learn how we operate the network how the providers operate and be in the industry maybe we're going to become a little bit kinder to the service providers so basically we do use several models and there are three main types of seller rules cell phones or we can we can use our cell phone as a model to enable access Internet to the computers and we call it tethering we're gonna cover also the tethering the jailbreaking the routing of the devices little bit later you will learn the terms for iPhones Android and Windows phones for now we're just going through the main tab so we have several cards it's a portable network adapters that plug into the computers sometimes we call it air cards in a cellular routers it's a again portable network routers that contain built-in several orders so we all use this to connect to the internet to communicate between the devices and we do this is the basically three main types okay guys we're slowly getting to our devices and we're going to be covering for the next 10 minutes we're going to be covering the cell phones generation the evolution and I'm pretty sure most of you maybe do not remember 1g technology that actually was you know available it started in nineteen nineteen eighty-one but it became partially available to the public because of its higher cost by 1983 and the first phone the 1g that you see on your screens believe it or not it cost $4,000 at that time in 1981 it was a huge huge money to spend on a cell phone so first of all it was not available widely to the public but only people who have a capability of using it could use it because of the higher cost plus it waited probably three for killers you know with the base so and the battery power you could charge it overnight and you only would have like thirty minutes of battery power before it goes dead so I'm pretty sure that you guys by 1992 you were a lucky owner of the Nokia 1100 this is the second generation of the cell phones it came in 1992 it was a bigger success and by I believe it was the biggest biggest cell selling point for the Nokia at that time with the 250 million units so 3G technology came by 2004 and the 4G technology came in 2011 the phone's become more available it became more sophisticated and the 5g are we going to talk separately about the 5g future technologies be very interesting to know that you know you also Huawei and Samsung we back three years ago they're claiming that there is a technology and it's gonna be released soon we haven't heard from them for three years so basically one jeev was an analog signal and there was nothing else in that 1g technology and the first generation of mobile system it was actually designed in 1970 and first first implemented in 1981 as we know and in addition 1g technology is relied on the analog technology by using the advanced mobile phone system we call it amps which is consists of seven cell reuse pattern by using frequency modulation frequency division duplex in ft tiwa call it and frequency division multiple acts of FDMA so therefore the analog speed signals are provided by the first generation of wireless communication system with low data rate and insufficient data transmission between the base station and mobile user so it was pretty dull but at that time very sophisticated so the second generation of a mobile system was first designed 1980s as I mentioned and it was first implemented in 1991 due to the need of overcome the issues that they were having with a 1g technology and third generation 3g of mobile system was first designed in 1990 and was first implemented in 2001 believe it or not moreover 3G technologies provided backward compatibility for 2g and actually to Anna in order to get a highest speed internet access with different types of browsing and in with the browsing applications because by that time we had so many applications that required their faster and more reliable network so the first generation of mobile system came to the market actually in 2010 but it was first designed in 2000 and the main purpose of 4G technologist was to overcome of course the problem of a lower speed in the previous generations so as you can see gradually gradually you know here after year the the research and development was pretty big for each generation of the of these phones so what about 5g well before we go too far gf have a other slide that it's gonna be showing that in 2011 believe it or not 90% of the world's population lived in the areas with 2g coverage so why is that people cannot afford it's a higher cost we're lucky to live in the United States and we can afford the high technology here in Silicon Valley we're in the middle of the high tech so I don't even think I hardly see the 2g phones here in the area except for the older people who do not need to tax they just want to make a phone call and they don't care about you know seeing the news they watch TV they still reading newspaper and actually that business is slowly dying and I'm pretty sure that the older people are the only one who are using this news purrs using this flip flop flip flop phones and they just don't care my mother actually still using the older phone but the providers they are forcing people to give up their older model because it's very very they're losing money or providing service to this all the devices because they have to modify their firmware their software in order to for the older phones to operate so we're gonna finish in a few minutes I know but we're gonna cover the 5g like I mentioned before in August 2013 who are we are announced that there is a technology available for 5g and they followed by Samsung that announced the 5g technology available so but like I mentioned before there was no not a word after that and what is 5g to us what it doesn't mean for somebody who does not understand I would say that downloading the two-and-a-half-hour movie in two seconds this is pretty much 5g we're going to be happy to have it by 2020 it's just three years left I hope you know how they claiming but right now this technology is not available guys I want to thank you today for being with me and are we gonna continue our lectures on Thursday so I will see you at six o'clock at California time it's we have a different time all of us and we just gonna see each other many days after this thank you so much for watching for listening I have a good night