### 9.6 Scoping and filtering within maps

With DITA version 1.3 and specializations you should be able to apply conditions to parts of maps. You can achieve some of this effect in DITA version 1.1 or 1.2 with PIs that constrain the scope of ditaval conditions; and as a bonus, you can reuse topics in multiple places in the same document.

Note: Ordinarily, DITA PIs should be used only for filterable events; see §38.1.3 Deciding when to use PI markers. Including or omitting the PIs described in this section would affect content, not just presentation, and therefore should be considered a workaround. To preserve interoperability, use them only until the DITA standard includes an architectural feature to address the need for filtering within maps.

In this section:

§9.6.1 Understanding the advantages of filtering in maps

§9.6.2 Designating map sections as named branches

§9.6.3 Reusing the same topics with different conditions

§9.6.4 Directing a cross reference to the correct branch

§9.6.5 Directing a content reference to the correct branch

§9.6.6 Limiting the scope of keydefs by branch

§9.6.7 Directing a key reference to the correct branch

Previous Topic: 9.5 Assigning attributes with conditional flags

Next Topic: 9.6.1 Understanding the advantages of filtering in maps

Parent Topic: 9. Specifying conditional processing

Sibling Topics:

9.1 Extracting conditions from ditaval files

9.2 Defining conditional actions

9.3 Including flags for ditaval conditions

9.4 Configuring conditional flags

9.5 Assigning attributes with conditional flags