---
title: "20-SE-in-IA"
aliases: 
tags: 
- comp210
- lecture
---

# why
- apps for IoT devices contain security flaws
	- smart home security breaches
	- kindles
	- vulnerable libraries lead to vulnerable devices
- software helps us to use hardware
	- need to make the software secure

# overview
combines computer science, engineering, and maths to make software

- software engineering coined in 1968-1969 when discussing 'software cirsis'
	- security breaches
	- bugs etc

different from individual programming because of the Audience
![](https://i.imgur.com/yuIeXpq.png)

- types
	- generic software
		- stand alone systems e.e.g, word etc
	- customized software
		- designed specifically for a customer
	- generic can transistion to customised

# dev process
- tried to mirror engineering process
- software is different
	- needs to be flexible

timeline
- waterfall
- spiral
- agile

# stages
- design
	- feasability
		- ![slide](https://i.imgur.com/KD8J4Dr.png)
		- financial, legal, time, etc
	- requirements specification
		- stakeholders
			- anyone affected by the system
			- ![slide](https://i.imgur.com/NkMt4q7.png)
		- features, requirements
			- ![slide](https://i.imgur.com/ghNmRhj.png)
			- ![use vs system reqs](https://i.imgur.com/DWSNrSu.png)
			- ![functional vs non functional](https://i.imgur.com/gWwAWBV.png)
	- system design
		- ![slide](https://i.imgur.com/mMBkSp1.png)
		- databse design
			- er model etc
		- architectural design
			- structure of application
			- 
- develop
- validaion
- evolution

may go by different names


# for Information assurance