Mapping Loading Knowledge Modules (LKMs) FAQS

1. What are Loading Knowledge Modules (LKMs)?

• Loading Knowledge Modules (LKMs) define how data is moved from one execution unit to another, typically from the source to a staging area. They play a crucial role in managing data transfers between different parts of the workflow.

2. How do LKMs work?

• An LKM is selected for each access point in a data flow. It dictates how data should be moved from the source to a staging area, or in some cases, from one staging area to a target when specific conditions are met (e.g., using a single technology IKM for the staging area).

3. When is an LKM used?

• LKMs are used when data needs to be moved between the source, staging area, and target in the execution process. They are selected for each access point to manage the data flow.

4. Can an LKM move data from a staging area to a target?

• Yes, an LKM can move data from a staging area (not located within a target execution unit) to a target, but only if a single technology IKM is selected for the staging area.

5. How do I define or change an LKM?

• To define or change an LKM, select the access point within your data flow diagram and use the property inspector to choose or modify the LKM configuration for that specific access point.

6. Do I need to select an LKM for every access point?

• Yes, each access point in the data flow needs to have an associated LKM to define how data is transferred between execution units.

7. What is the role of the Access Point in LKM configuration?

• The Access Point acts as the connection between two execution units, and an LKM is selected for each access point to control the data transfer between these units.

8. Can an LKM be used for data movement outside of the target execution unit?

• Yes, if the data is being moved from a staging area that is not located within the target execution unit, an LKM can be used to facilitate this data movement to the target.

9. What is the relationship between an LKM and a target?

• The LKM defines how data is moved to the target, either directly from the source or via a staging area, depending on the configuration of the data flow and execution units.

10. Can I use different LKMs for different access points in the same flow?

• Yes, you can select different LKMs for each access point in a data flow, depending on the specific data movement requirements for each connection between execution units.