Application architecture patterns

Question 1

what are application architecture patterns

Answer 1

encapsulate principal characteristics of a class of systems
commonalities that describe structure and organization of particular types of software systems

Question 2

what are data processing systems

Answer 2

data driven applications that process data in batches without explicit user intervention

• component reads data, checks validity and queues for processing
• component transforms input and creates new record with results of computation
• writes to database/send to other output

Question 3

what are transaction processing systems

Answer 3

data centered applications that process user requests and update information in a system database
process user requests for information from a database or requests to update DB
user perspective - coherent sequence of operations that satisfies a goal

Question 4

what are event processing systems

Answer 4

applications where system actions depend on interpreting events from the systems environment
think MS word, click, drag etc

Question 5

what are language processing systems

Answer 5

applications where the user’s interactions are specified in a formal language that is processed and interpreted by the system
think Google translate

input -> lexical analyzer -> syntax analyzer and back