Hiring guide for IDMS ADS/O (Application Development System Online) Engineers

IDMS ADS/O (Application Development System Online) Developer Hiring Guide

IDMS ADS/O (Application Development System Online) is a computer software programming language developed by Computer Associates in the 1980s. It is an integral part of the IDMS (Integrated Database Management System), used for designing and managing online applications. The language allows developers to create, test, and debug application programs within the IDMS environment. Its robust features have made it a popular choice among programmers working on complex database management tasks. This information is sourced from historical documentation and user manuals provided by Computer Associates, now known as CA Technologies.

Ask the right questions secure the right IDMS ADS/O (Application Development System Online) talent among an increasingly shrinking pool of talent.

First 20 minutes

General IDMS ADS/O (Application Development System Online) app knowledge and experience

The first 20 minutes of the interview should seek to understand the candidate's general background in IDMS ADS/O (Application Development System Online) application development, including their experience with various programming languages, databases, and their approach to designing scalable and maintainable systems.

What is the primary function of IDMS ADS/O?
The primary function of IDMS ADS/O is to provide an environment for developing, testing, and running online applications.
How would you define a record in IDMS?
A record in IDMS is a collection of related data items that are treated as a single unit. It is similar to a row in a relational database.
What are the main components of an IDMS database?
The main components of an IDMS database are records, sets, and areas.
Describe the difference between a local and a central version in IDMS.
A local version in IDMS is a version of a database that is stored on a local machine, while a central version is stored on a central server and can be accessed by multiple users.
How would you handle errors in IDMS ADS/O?
Errors in IDMS ADS/O can be handled using the ADSA error processing system, which allows developers to define error messages and actions to be taken when an error occurs.
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What you’re looking for early on

Does the candidate have a strong understanding of the IDMS ADS/O system?
Has the candidate demonstrated problem-solving skills?
Is the candidate familiar with COBOL programming language?
Does the candidate have experience working in a team?

Next 20 minutes

Specific IDMS ADS/O (Application Development System Online) development questions

The next 20 minutes of the interview should focus on the candidate's expertise with specific backend frameworks, their understanding of RESTful APIs, and their experience in handling data storage and retrieval efficiently.

What is the role of a subschema in IDMS?
A subschema in IDMS defines a view of the database for a particular application. It specifies which records and sets the application can access.
What are the different types of sets in IDMS?
There are two types of sets in IDMS: ordered sets and unordered sets. Ordered sets maintain a specific order of members, while unordered sets do not.
Describe the difference between a record occurrence and a record type in IDMS.
A record type in IDMS is a definition of a record, including its name and the types and lengths of its data items. A record occurrence is a specific instance of a record type.
How would you implement a many-to-many relationship in IDMS?
A many-to-many relationship in IDMS can be implemented using a junction record, which has one-to-many relationships with the two record types involved in the many-to-many relationship.
What are the different types of locks in IDMS?
There are three types of locks in IDMS: shared locks, update locks, and exclusive locks.
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The ideal back-end app developer

What you’re looking to see on the IDMS ADS/O (Application Development System Online) engineer at this point.

At this point, a skilled IDMS ADS/O (Application Development System Online) engineer should demonstrate strong problem-solving abilities, proficiency in IDMS ADS/O (Application Development System Online) programming language, and knowledge of software development methodologies. Red flags include lack of hands-on experience, inability to articulate complex concepts, or unfamiliarity with standard coding practices.

Digging deeper

Code questions

These will help you see the candidate's real-world development capabilities with IDMS ADS/O (Application Development System Online).

What does this simple IDMS ADS/O code do?
MODIFY EMPLOYEE. 
 SET LAST-NAME TO 'SMITH'.
This code modifies the 'LAST-NAME' field of the 'EMPLOYEE' record to 'SMITH'.
What will be the output of this IDMS ADS/O code?
DISPLAY 'EMPLOYEE NAME: ' EMPLOYEE.NAME.
This code will output the string 'EMPLOYEE NAME: ' followed by the value of the 'NAME' field of the 'EMPLOYEE' record.
What does this IDMS ADS/O code do?
FOR EACH EMPLOYEE IN DEPARTMENT. 
 DISPLAY EMPLOYEE.NAME. 
 END-FOR.
This code iterates over each 'EMPLOYEE' record in the 'DEPARTMENT' set and displays the 'NAME' field of each 'EMPLOYEE' record.
What does this IDMS ADS/O code do?
PERFORM PROCESS-EMPLOYEES UNTIL NO-MORE-EMPLOYEES.
This code performs the 'PROCESS-EMPLOYEES' routine until the 'NO-MORE-EMPLOYEES' condition is met, which is typically used for concurrency control in IDMS.

Wrap-up questions

Final candidate for IDMS ADS/O (Application Development System Online) Developer role questions

The final few questions should evaluate the candidate's teamwork, communication, and problem-solving skills. Additionally, assess their knowledge of microservices architecture, serverless computing, and how they handle IDMS ADS/O (Application Development System Online) application deployments. Inquire about their experience in handling system failures and their approach to debugging and troubleshooting.

Describe the difference between a system-owned and a user-owned index in IDMS.
A system-owned index in IDMS is owned by the system and is automatically maintained by IDMS, while a user-owned index is owned by a user and must be manually maintained.
How would you handle a deadlock situation in IDMS?
A deadlock situation in IDMS can be handled using the deadlock detection and resolution features of IDMS, which can automatically detect and resolve deadlocks.
What are the different types of database recovery in IDMS?
There are two types of database recovery in IDMS: forward recovery and backward recovery. Forward recovery applies changes from the journal to the database, while backward recovery undoes changes from the database.

IDMS ADS/O (Application Development System Online) application related

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Beyond hiring for your IDMS ADS/O (Application Development System Online) engineering team, you may be in the market for additional help. Product Perfect provides seasoned expertise in IDMS ADS/O (Application Development System Online) projects, and can engage in multiple capacities.

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