1 Creating a Pega Platform application
1.1 Enterprise Class Structure layers
1.1.1 Pega Platform layer ⇒ Organization layer ⇒ Division layer
1.1.2 Framework layer ⇒ Implementation layer
①．Framework layer と Implementation layer は Application から分離される
②．framework layer または、implementation layer のいずれかに属する資源は、アプリケーションによって異なる
2 Application versioning
2.1 Application versioning
2.1.1 The versioning methods（release cycleを表す）
①．方法1：lock and roll（patch versionの為）
Minor versionとmajor versionについて、application recordとaccess groupの更新が必要
Patch versionについて、通常は上記の更新が必要ない
②．方法2：skimming（minor version and major versionの為）
2.2 Creating a new application version
2.2.1 Lock and roll（Dev Studio > Configure > Application > Structure > RuleSet Stack）
①．Do not update my application
patch version numberのみの更新
②．Update my Application to include the new Ruleset Versions
minor versionの更新
③．Create a new version of my application
a new application ruleの作成
2.2.2 Skimming（Dev Studio > Configure > System >Refactor > RuleSets）
3 Application rulesets
3.1 Application and production rulesets
3.1.1 Application rulesets
①．Applicationが新規作成される時に、以下rulesetsも自動生成される（名称はApplication名によって異なる）
For Application：HRApps、HRAppsInt
For Organizational：TGB、TGBInt
3.1.2 Production rulesets
①．Delegated rulesを利用する為
3.2 Ruleset validation
Application rulesはApplication Validation mode
Organizational rulesetsはRuleset Validation mode
3.2.1 Application validation mode（AV）
Validation tool：Dev Studio > Configure > Application >Tools > Validation
3.2.2 Ruleset validation mode（RV）
3.2.3 Ruleset prerequisites
Ruleset prerequisitesはお互いに参照できない
3.2.4 Mixing application ruleset validation modes
MyCoPL[MyCo]：AV[RV]
3.2.5 Ruleset validation best practices
3.3 The ruleset list
3.3.1 参照方法：Operator > Profile
ruleset list landing page：Dev Studio > Configure > Application > Structure > RuleSet Stack
3.4 Managing changes to rules in a ruleset
3.4.1 Managing changes to rules in a ruleset
3.4.2 Ruleset locking
3.4.3 Rule checkout and check-in
3.4.4 Check out a rule
Ruleset画面を開く（Edit Ruleset）⇒ Securityタグ ⇒ Use check-out? をチェック
3.5 Check in a rule