Identify design patterns, Computer Graphics

Assignment Help:

Mauri Ltd has just acquired a new stock management system and the source codes (PhP5) also have been delivered. The coding style is fully object-oriented. The company has been using the system for two weeks and is not satisfied with it. For each user accessing the system, a new connection is made. The User Interface (UI) is not standard. Each update to the database is treated by a separate program. Search facilities have been included but different programs have been written to provide such facilities. You have been asked to refactor the system using Design Patterns.

(a) Identify five design patterns that can be used. Describe how each pattern can be used in the above context. Your answer should consist of a detailed description of the pattern including the structure (diagram) and a justification for its use. Note: Sample codes may be used to explain your answer.

(b) "Familiarity sometimes keeps us from seeing the obvious." In what way can patterns help avoid this?

(c) What are three reasons that cause requirements to change?

(d) What could Christopher Alexander discover by looking at structures that solve similar problems?

Related Discussions:- Identify design patterns

Application areas of computer graphics, Explain application areas of comput...

Explain application areas of computer graphics in different areas.    Early computer graphics has only certain special capabilities such as straight lines circles and ellipses

Dda program to plot line segments, Use DDA algorithm to get the output of y...

Use DDA algorithm to get the output of your program as shown in Figure ANs: Use DDA( ) function to plot line segments that have end points on diametrically opposite points

Translation - 2-d and 3-d transformations, Translation - 2-d and 3-d Transf...

Translation - 2-d and 3-d Transformations It is the process of changing the position of an object. Suppose an object point P(x,y)=xI+yJ be moved to P'(x',y') by the specified

Determine the transformation matrix for cavalier projection, Determine the ...

Determine the transformation matrix for: a) Cavalier projection with θ=45 0 , and b) Cabinet projection with θ=30 0    c) Draw the projection of unit cube for all transfor

Graphics image processing-image processing, Graphics Image Processing: The...

Graphics Image Processing: The most generally utilized software is: Photoshop. Characteristics: I.          Most general image processing software. II.         Focuses upon

Differences, difference between vecgen and breshnam algorithm

difference between vecgen and breshnam algorithm

Illustration of bezier curves - modeling and rendering, To prove ‾P (1) = p...

To prove ‾P (1) = p n Solution : since in the above case we determine each term excluding B n,n (u) will have numerous of (1 - u) i (i = 0 to n) consequently by using u = 1

Write Your Message!

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd