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The figure below depicts the conceptual diagram of a banking system.
(a) Describe one example relevant to the system in figure, for each of the 4 types of enterprise applications integration.
(b) Should legacy systems be phased out or stay? Discuss from an EAI perspective.
(c) Describe how XML can be a point of integration in Enterprise Applications Integration.
(d) With the evolution of distributed computing and client server architecture towards SaaS and Cloud Computing, what are the new programming paradigms or concepts enabling EAI ?
(e) Assuming for the web delivery services different servers are identified; web servers, media servers, portal servers, and application servers. Give 1 current product on the market for each of them.
why shadow copy technique is used?
Describe multi key files
give me a diagram about physical or internal level
What are the costs to be considered when a transaction has to be rolled back when recovering from deadlock? Ans: A few transaction will must rolled back (made a victim)
Write short notes on relational constraints? Relational Constraints are: 1. NOT NULL 2. Unique 3. Primary key 4. Foreign key 5. Table check
Consider entity type Employee with attributes empNumber (this is unique), empName, and the year when he/she was hired. An employee can either be a technical employee, a marketing e
This constraint shows that the key attribute value in each tuple must be unique, i.e., no two tuples have the similar value for the key attribute. This is because the value of the
What are multiple inheritances? Multiple inheritances allow a class to inherit variables and methods from many super classes.
What is the major advantage of object-oriented programming paradigm? The ability to modify the explanation of an object without affecting the rest of the system is the main adv
Briefly describe concurrency execution? Lock - based protocols Locks There are several modes in which a data item may be locked in this section we restrict our attention
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