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28 Cards in this Set

  • Front
  • Back

What is software engineering?

The establishment & use of sound engineering principles in order to obtain economical software that is reliable & works efficiently

Relationship between Software engineering & Computer Science ?

SE - concerned with software production process


CS - Focuses on theory and computer functionality

What was the great software crisis of the 1960's about?

The individual approaches to program development did not scale up to large complex software systems.

Name the 4 factors that impact the quality of a software product

Acceptability - understandable & usable


Dependable & Secure - secure from malicious users.


Efficiency - proper resource utilization


Maintainability - written in a way that allows ti to evolve

What is off the shelf software?

stand alone systems & are sold to any customer who is able to purchase.



What is customizable software?

developed for a particular customer/business

What is one-of-a-kind software?

designed for a specific and unique need

What is a computer application software engineer?

Creates application programs that have a precise purpose.

What is a computer system software engineer?

Designs software needed to make a system run

What are the four major software engineering process activities?

Specification


Design & implementation


Validation


Evolution

What are the four related issues that may affect different types of software?

Heterogeneity


business and social change


security and trust


scale

What is heterogeneity?

Allow to work with legacy systems, different languages and mobile devices and still operate properly

What is Business and social change?

The rapid change of needs and requirements of the software

What is security and trues?

Software is everywhere, and it is important that customers are able to trust the software they use.

What is the worry with scale with different types of software?

systems range from small and embedded to large internet and cloud based systems

Why do they say software engineering is concerned with all aspects of software production?

its not just about the program, but the documentation, libraries, support system and configuration data that is needed to make the software useful

What are the different categories of software?

Stand alone


Interactive transaction based


Embedded Control


Batch processing


Entertainment


Modeling & simulation


Data collection


System of systems

What does the software process model represent?

Simplified representation of software process.


- each process model represents a process from a particular perspective and only provides partial info about the process

What are the 3 main activities of the requirements engineering process(software specification)?

1) requirements elicitation & analysis


- deriving system reqs. from existing system


2)Requirement specification


- translating info gathered from 1st step


3)Requirement validation


- check for realism & consistency & completeness

When is it appropriate to use the waterfall process model ?

During hardware development, where high manufacturing costs are involved


(plan & sced all before starting)

When is appropriate to use the incremental process model?

software, where requiremetns are likley to change during development process.


(releasing versions and get feedback)

What types of software components are typically reused?

-Standalone application system


-Collection of objects that are components of a framework


- Web-services that are developed according to a standard

What are the advantages of prototyping?

-allows potential users to test how will system will support their work


- Allow customers to find strengths and weaknesses in software


- can carry out experiments & check feasibility


- find errors before actual launch

What are the dis-advantages of prototyping?

-prototypes cannot meet all objectives, this can lead to end user misunderstanding functionality


- users may not get benefits they expect


- standards of reliability may be reduced

What are the advantages of incremental delivery?

- unlike prototypes alone they are part of the final system so users gain experience and benefits from using.


- users dot have to wait until the entire system is delivered to gain value from it

What are the dis-advantages of incremental delivery?

- hard to identify common facilities that are needed by all the increments


- users need all of the functionally of old system and don't want to mess with an incomplete one.


- contracts with gov. type is hard with unknown final.

What is the process maturity approach?

focus is on improving process project management and introducing good software engineering practice into and organization. with good technical and management process.

What are the 2 primary goals of implementing process maturity approach?

- Improved product quality


- Process predictability