SOFTWARE ENGINEERING
ASSIGNMENT 2
BSSE-2B
SP21051
SUBMITTED BY: MUHAMMAD ROOHAN
SUBMITTED TO: MA’AM AMINA SAJID
1|Page
Question: Write down any 3 real systems that are build on Incremental
model. Briefly explain with 4 builds each.
Incremental Model is a process of software development where requirements divided into
multiple standalone modules of the software development cycle. In this model, each module goes
through the requirements, design, implementation and testing phases. The process continues until
the complete system achieved.
The 3 real systems that are build on Incremental model are
1. Windows
2. WhatsApp
3. Instagram
1. Windows:
Windows acts as a graphical operating system designed by Microsoft, which allows users to
viewand store files, run the software, play games, watch videos, and also provides a way to
connect tothe internet. The window can be moved, dropped, resized, or maximized as desired by
the user.Microsoft Windows has seen nine major versions since its first release in 1985. Over 29
years later, Below are the features of various versions of the Windows Operating System, from
its birth at the hands of Bill Gates with Windows 1 to the latest arrival under new Microsoft chief
executive Satya Nadella which were incremented in different versions starting from window 1, 2,
3, NT, 95, 98, 2000, XP, Vista, 7 and so on.
Windows 1
2|Page
Release Date
It was released on November 20, 1985.
Features

It was the first attempt by Microsoft to design a graphical user interface (GUI) in 16-bit.

It comprises Simple Graphics.

Limited multitasking was offered and expected to have a more reliable future potential

Various versions like 1.02, 1.03, and 1.04 were also released.
3|Page

Windows XP
Release Date
It was released on 25 October 2001.
Features

While the construction started on August 24, 2001, the official product was issued on
October 25, 2001.

Windows eXPerience is often abbreviated as XP, Moreover Microsoft Windows XP was
code named Whistler.
4|Page

The 64-bit version of Windows XP was launched on 28 March 2003 and the Professional
x64 version was launched on 24 April 2005.

The two primary versions of Windows XP are: Windows XP Home Edition(Full or
upgrade and only 32-bit.) and Windows XP(Full or upgrade and 32-bit or 64-bit)
Professional.

Windows XP was thought the best edition of Windows, it followed Windows ME and
gave consumer-friendly elements.

New interface and multilingual support increased reliability compared to earlier versions
of Microsoft Windows.


High-speed start-up.
More conventional Graphical User Interface (GUI).

Extended support ended on April 8, 2014.
Window 7
5|Page
Release Date
It was formally published by Microsoft to the public on October 22, 2009.
Features







It was introduced to overcome all difficulties that were faced by Windows Vista.
It was more stable, faster, and easy to use as compared to the earlier versions.
Faster start-up time.
Extended hardware assistance.
It was issued with user-friendly features and less dialogue box overload.
It supports multi-touch screen displays.
Extended support ended on January 14, 2020.
Windows 10
6|Page
Release Date
On 29 July 2015, Microsoft introduced Windows 10.
Features

Windows 10 is the latest version of Microsoft Windows.

It was planned for all Windows platforms across various devices, as well as Windows
tablets and Phones, including common applications.

Along with Internet Explorer, a new Microsoft Edge browser for Windows 10 users, was
also included.

Addresses faults in the user interface Initially introduced in Windows 8.

Cortana; the new voice assistant was also added to the Windows search bar

It is provided with a virtual desktop system.
7|Page
2. WhatsApp
WhatsApp is an freeware, cross-platform centralized instant messaging (IM) and voice-overIP (VoIP) service owned by Meta Platforms.[12] It allows users to send text messages and voice
messages,[13] make voice and video calls, and share images, documents, user locations, and
other content. Some incrementals in WhatsApp are as follows;
Disappearing Messages—With Some Limits
Beginning today, WhatsApp will start rolling out the option for users to enable disappearing
messages in one-on-one chats; admins will have the option to enable the feature in group
chats. Disappearing messages should be available globally by the end of the month. Unlike other
services, though, WhatsApp isn't going to offer granular options—an hour, a day, a month—for
the time until messages vanish. Instead, the feature will be more minimalist. Every chat will start
with the feature off by default, and either party choosing to turn it on will trigger a set seven-day
auto-delete window. Your messages will be scrubbed a week after you send or receive them.
Introducing private and secure calling from the
desktop
We're excited to announce that private and secure one-to-one voice and video calls are now
available on WhatsApp’s desktop app.
8|Page
Throughout the last year we've seen significant increases in people calling one another on
WhatsApp, often for long conversations. Last New Year’s Eve, we broke the record for the most
calls ever made in a single day with 1.4 billion voice and video calls. With so many people still
apart from their loved ones, and adjusting to new ways of working, we want conversations on
WhatsApp to feel as close to in-person as possible, regardless of where you are in the world or
the tech you’re using.
Answering on a bigger screen makes it easier to work with colleagues, see your family more
clearly on a bigger canvas, or free up your hands to move around a room while talking. To make
desktop calling more useful, we made sure it works seamlessly for both portrait and landscape
orientation, appears in a resizable standalone window on your computer screen, and is set to be
always on top so you never lose your video chats in a browser tab or stack of open windows.
View Once Photos and Videos on WhatsApp
9|Page
While taking photos or videos on our phones has become such a big part of our lives, not
everything we share needs to become a permanent digital record. On many phones, simply taking
a photo means it will take up space in your camera roll forever.
That’s why today we’re rolling out new View Once photos and videos that disappear from the
chat after they’ve been opened, giving users even more control over their privacy.
For example, you might send a View Once photo of some new clothes you’re trying on at a store,
a quick reaction to a moment in time, or something sensitive like a Wi-Fi password.
As with all the personal messages you send on WhatsApp, View Once media is protected by
end-to-end encryption so WhatsApp cannot see them. They will also be clearly marked with a
new “one-time” icon.
After the media has been viewed, the message will appear as “opened” to avoid any confusion
about what was happening in the chat at the time.
Group video and voice call now supports 8
participants:
10 | P a g e
The COVID-19 pandemic has meant that many of us are isolated from friends and family. As a
result, we see that people all over the world are turning to voice and video calling on WhatsApp
more than ever before. Group calling has been particularly useful and our users have asked to
connect with more people at once. Starting today, we’re doubling the number of participants you
can have on a WhatsApp video or voice call from 4 to 8 people at a time.
Over the last month, people on average are spending over 15 billion minutes talking each day on
WhatsApp calls, well above a typical day before the pandemic. And just like written messages,
all those calls are protected with end-to-end encryption. We have built group calling in a way
that makes it available for as many users as possible, including people on lower-end devices and
slow network conditions.
We know people may want different ways to connect while they’re at home, which is why
WhatsApp is also available on Portal — which many users have told us has been a great way to
share their living room with family during quarantine.
3. Instagram
11 | P a g e
As we know that Instagram is a social media networking app. It is an example of incremental
model. If we look at the first version of Instagram it was quite simple as compared to present
version and the reason behind all this is incrementation.
Some of the increments in Instagram are
New "blog posts"
When Instagram first launched, the app focused mainly on photos.
But in recent years, video has become a huge part of Instagram – including IGTV, a dedicated
area for clips.Now Instagram is taking it one step further with Guides, adding written text into
the mix.
Guides appear as a separate section on your profile, but can be linked back to regular posts and
Stories.
12 | P a g e
13 | P a g e
More tools for creators to increase their content
partnerships
In the fast-approaching Christmas shopping euphoria, the tech giant is testing new features to
help creators grow their content partnership.
The first option is called “Partnerships,” and it is a feature within the messaging part of the app
that is meant to help creators organize and oversee sponsored content opportunities.
“Partnerships” should ease the communication between the brands and creators that are open for
collaboration.
14 | P a g e
New Map search feature
Map search is the latest Instagram feature that allows users to find the location of different
businesses within the Instagram app. With one click on the map icon, users can now see
directions about nearby places like restaurants, bars, cafeterias, entertainment venues, and more.
Additionally, once users click on a specific business they can find out more information like
location, price of products and services, as well as public posts marked with the business’
location.
To find the new feature:
1. Click on the explore button
2. In the upper right corner click on the map icon
15 | P a g e
To explore new places within the new map app you can click on one of the listed categories like
restaurants, cafes, hotels, etc. or you can search by typing in a name or a specific hashtag in the
search bar.
New updates for Instagram Live
You can now go Live for up to 4 hours (until now, it was up to an hour-long)
Live videos will be available in your archive for 30 days, so you can download them or re-use it
for your next IGTV content
‘Live Now’ section is added within the IGTV app and on Explore so you can discover more
Lives
According to Instagram, this is another step toward helping creators follow their interests, reach
audiences, engage with communities, and build businesses.
16 | P a g e