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Assignment 2 Task 2

K-base SDLC

Theoretical SDLC

There are 3 types of model that KBase used in their software development
.

Offshore Delivery Model
Onsite Delivery Model
Hybrid Delivery Model

Model:Offshore Delivery Model

&

Model:Onsite Delivery Model
&

Model:Hybrid Delivery Model

Strength :

Reduced Costs: Advantage of low labor cost, which will be reflected in drastic reduction in the overall costs.
Excellent Results: Clients can get high quality work from the quality offshore resources.
No extra Expense: Client doesn’t have to worry about the infrastructure needed to complete their task.
Access to the Most Optimal Resources: Client can have access to the best possible technology, skilled manpower and equipments, depending on their budgets.
Productivity: Project is not affected by time-zone difference.

Weakness:

Low Management Maturity.
Customer dont know what they really want.
Offshore team has to spend some extra amount of time for code deployment and delivery.

Strength:

Face-to-face dealings with the client:
On Hand Information:
No chance of communication gap.
Minimum chances of alterations in later stages:
For the clients, less time-to market

Strength:

Direct dealings with the client
Access to the most excellent resources
Great cost benefits
Best possible management of resources

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assignment 2 -task 1

*Extreme Programming:

characteristics	strengths	weaknesses	applicability
*Pair programming - Ensures quality code. One programmer is thinking whether the approach will work, about testing, or ways to simplify the code while the other programmer writes the code.   *Simple design - Keep the design as simple as possible for the moment and don't add features that ar not needed for current functionality.   *Small releases - There is a short time between versions	*Emphasis on teamwork and communication: As with the TSP, this is very important in improving the performance of just about every software team.   *Emphasis on customer involvement: A major help to projects where it can be applied.   *Simple design: Though obvious, worth stressing at every opportunity	*as automated acceptance tests rather than specification documents leads to lack of necessary documentation.   *Can be very inefficient—if the requirements for one area of code change through various iterations, the same programming may need to be done several times over.   *Only works with senior-level developers( no chance for junior worker to gain experience).	*Used in Project Management   *Used in XP and Web Development   *Used for situations when customers may not have a firm idea of what the system should look like

assignment 2 -task 1

*Prototype model:

Characteristic	Strengths	Weaknesses	Applicability
*  A prototype (early estimation of final software product) is built for user to test by trying them out, as oppose from user just interpreting the design based from description.           *The prototype will be rebuilt again for improvement based on user feedback.          *This process will be done several times until an acceptable prototype is achieved to produce complete software product.	*  Can ensure that the developer, user and customer have a common understanding of what is needed and what is proposed.          * Can be used by users to describe and proved requirements that developers have not considered.         * Prevents misunderstanding between developer, user and customer that might occur particularly in the requirement analysis phase.	*The focus on a limited prototype can distract developers from properly analyzing the complete project.          * Developers have the tendency to build complicated prototype (that in the end they have to throw it away) and thus results in lengthy development time.         *Using prototype model is very costly because developers need to build many prototypes before right prototype is attained.	* When the requirements are unclear.          *Most beneficial to system that will have many interaction with users.          * Especially good for designing human-computer interfaces.

assignment 2 -task 1

*Spiral Model:

characteristics	strengths	weaknesses	applicability
*A hybrid model that support process iteration. *Represented as spiral, each loop in the spiral representing a process phase. *Risk is explicitly taken into consideration.	*Risk reduction mechanisms are in place. *Supports iteration and reflects real-world practices. *Systematic approach.	*Hard to estimate time & budget at earlier stage. *Need specific expertise in risk evaluation and reduction for analysis. *Applicable only to large systems because it involve high costs in implementation.	*Internal development of large systems. *For smaller projects, the concept of agile software development is becoming a viable alternative. *Development of space exploration.

assignment 2 -task 1

*Incremental Model:

characteristics	strengths	weaknesses	applicability
*Easy the traumatic effect introducing completely new system all at once. *Combine elements of both linear and parallel process flow. *Highest priority requirements need to be settle early	*Early increment can be implemented with few people . *Provide clients flexibility in making their decision. *New project can be stopped at any time after the first cycle.	*The project may be unfinished with the cost and the schedule overruns. *Problem may arise pertaining to system architecture. *The basic requirement are address but supplementary features remain undelivered.	*Core product is well received and additional staff can be added to implement. *Useful when insufficient can be planed to manage technical risk. *Essential pars of the rational unified process

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