temporal patterns e Not just do we want to know the state of the world we want to know the state of the world six months ago what two months ago we thought the state of the world six months ago was ● Effectivity pattern o Temporal Property pattern
temporal patterns Not just do we want to know the state of the world, we want to know the state of the world six months ago what two months ago we thought the state of the world six months ago was ⚫ Effectivity pattern ⚫ Temporal Property pattern
Effectivity Addreaa laage * Party Address effectve: Date Range
Effectivity
Employment ffective: DateRange Com pany P erson isEtfectiveOn(Date): boolean create(Person, Company, startDate end (endDate e Wellington On Dec 1 1999 he begins employment with India Inc
Wellington. On Dec 1 1999 he begins employment with India Inc
e Wellington. On Dec 1 1999 he begins employment with India Inc employment wellington: Person_ India Inc: Company effective=↑Dec99 e As time continues he starts a new employment with Peninsula Inc on April 1 and ends his employment with India Inc on May 1
Wellington. On Dec 1 1999 he begins employment with India Inc As time continues he starts a new employment with Peninsula Inc on April 1 and ends his employment with India Inc on May 1
:employment wellington: Person India Inc Company effective=1 Dec 99-1 May 00 : employment Peninsula effective 1 Apr 00 Company