|
| Observed variables | Reference | Acronyms |
|
| Maintenance implementation | Koussaimi et al. [64]; Queensland Government [58]; Raveenthiran [59]; Baaki et al. [65]; Liptrot and Palarchio [104]; Lee and Scott [60]; Horner et al. [69]; Lundgren et al. [70] | |
| (i) Maintenance strategies | Fredriksson and Larsson [105]; Horner et al. [69] | Pr1 |
| (ii) Maintenance labour | Olanrewaju and Abdul [68]; Raveenthiran [59] | Pr2 |
| (iii) Maintenance equipment and technique | Olanrewaju and Abdul [68]; Molochnikov et al. [106] | Pr3 |
| (iv) Failure and downtime | Engeler et al. [107]; Márquez [57] | Pr4 |
| (v) Predetermined interval | Raveenthiran [59] | Pr5 |
| (vi) Monitoring and inspection | Raveenthiran [59] | Pr6 |
| (vii) Acquisition of maintenance data | Márquez [57] | Pr7 |
| (viii) Maintenance manager | Crespo and Gupta [108]; Ruparathna et al. [109]; Raveenthiran [59] | Pr8 |
| (ix) Spare parts and materials | Márquez [57]; Oliveira et al. [110] | Pr9 |
| Backlog and priority control | Mike [74]; Jandali et al. [111] | |
| (i) Maintenance log report | Mike [74] | BCPS1 |
| (ii) Asset hierarchy | Raveenthiran [59]; Mike [74] | BCPS2 |
| (iii) Centralised asset control | Balouei et al. [10]; Mike [74]; Raveenthiran [59] | BCPS3 |
| (iv) Mobile friendly solution | Mike [74] | BCPS4 |
| (v) Condition monitoring sensors and barcode lookup | Mike [74] | BCPS5 |
| Execution procedure | Queensland Government [58]; Muchiri et al. [112]; Pintelon and Van Wassenhove [113] | |
| (i) Efficient work order | Raveenthiran [59]; Queensland Government [58]; Muchiri et al. [112]; Gado and SamehHussien [114] | MEP1 |
| (ii) Job scheduling | Pintelon and Van Wassenhove [113] | MEP2 |
| (iii) Breakdown | Keneley [115]; Raveenthiran [59] | MEP3 |
| (iv) Time | Raveenthiran [59] | MEP4 |
| (v) Usage | Raveenthiran [59] | MEP5 |
| (vi) Condition | Queensland Government [58] | MEP6 |
| (vii) Event | Queensland Government [58] | MEP7 |
| Standard operating procedure | Libal et al. [71] | |
| (i) Define maintenance reason | Libal et al. [71] | SOP1 |
| (ii) Define location | Libal et al. [71] | SOP2 |
| (iii) Define coding | Libal et al. [71] | SOP3 |
| (iv) Who is responsible | Libal et al. [71] | SOP4 |
| (v) Define asset and criticalities | Libal et al. [71] | SOP5 |
| (vi) Define material usage | Libal et al. [71] | SOP6 |
| (vii) Define workflow procedure | Libal et al. [71] | SOP7 |
| (viii) Evaluation of job done | Libal et al. [71] | SOP8 |
| Service level agreement | Mohamed et al. [39]; Verma [116] | |
| (i) Type of service to be outsourced | Mohamed et al. [39] | OM1 |
| (ii) Disruption periods | Mohamed et al. [39] | OM2 |
| (iii) Reliability and responsiveness of service provider | Mohamed et al. [39] | OM3 |
| (iv) Consequences for not meeting deadline | Mohamed et al. [39] | OM4 |
| (v) Procedure for reporting issues with the service | Mohamed et al. [39] | OM5 |
| Strategic plan | Edirisinghe et al. [117]; Márquez [57]; Raveenthiran [59] | |
| (i) Asset priority | Ismail [118]; Raveenthiran [59] | STP1 |
| (ii) Operating cost | Raveenthiran [59]; Márquez [57] | STP2 |
| (iii) Maintenance cost | Edirisinghe et al. [117]; Márquez [57] | STP3 |
| (iv) Element hierarchy | Raveenthiran [59] | STP4 |
| Maintenance ID | Liptrot and Palarchio [104]; Queensland Government [58]; Raveenthiran [59] | |
| (i) Type of use | Raveenthiran [59] | MID1 |
| (ii) Age of building | Raveenthiran [59] | MID2 |
| (iii) Material type | Raveenthiran [59] | MID3 |
| (iv) Exposure to nature or other factors | Raveenthiran [59] | MID4 |
| Personnel attitude | Adetoro and Damilola [34]; Harrison et al. [119]; Saari and Judge [120]; Asiedu et al. [46]; Eagly and Chaiken [97]; Mohammad et al. [121]; Gouws and Trevelyan [53]; Kutucuoglu et al. [96] | |
| (i) Efficacy | Bandura and Wessels [98]; Maddux and Gosselin [99] | PA1 |
| (ii) Belongingness | Lee and Robbins [100]; Asiedu et al. [46]; Dartey-Baah [101]; Meyer et al. [102] | PA2 |
| (iii) Behaviour change | Elmualim et al. [103] | PA3 |
| Maintenance review | Dukić et al. [122]; Eyerusalem [123]; Labib [124]; Márquez [57]; Muchiri et al. [112]; Parida [125]; Parker [90] | |
| (i) User’s feedback | Hammami et al. [78]; Stokic et al. [75]; Syafar and Gao [76]; Giannozzi et al. [77]; Nguyen et al. [79] | Per1 |
| (ii) Workforce utilisation and skill level | Wemmerlöv [80]; Campbell [81]; Brusco and Johns [82]; Burleson et al. [83]; Stanley [84] | Per2 |
| (iii) Mean time between failure | NextTechnik [85] | Per3 |
| (iv) Equipment record | Patel and Chotai [86] | Per4 |
| (v) Regulatory compliance | Sadiq and Governatori [87] | Per5 |
| (vi) Mean time to repair (MTTR) | NextTechnik [85] | Per6 |
| Maintenance policy | Lee and Scott [60] | |
| (i) In-line with national policy | Zubairu [126] | MP1 |
| (ii) Formal training | Baaki et al. [65] | MP2 |
| (iii) Procedure for meeting schedule with staff | Farahani and Lipsett [127] | MP3 |
| (iv) Practice and procedure with time documented | Adewunmi et al. [128]; Fraser [129] | MP4 |
| (v) Quality assurance | Asubonteng et al. [92]; Muchiri et al. [112] | MP5 |
| (vi) Record keeping system | Koleoso et al. [36]; Muchiri et al. [112] | MP6 |
| (vii) Review of policy | Márquez [57] | MP7 |
| (viii) Provision of outsourced services | Abdeen and Sandanayake [130]; Toni et al. [131] | MP8 |
| (ix) Departmental maintenance guideline and action plan | Gandhare et al. [132]; Alzaben [133] | MP9 |
| (x) Schedule for preventive maintenance | Márquez [57]; Eti et al. [134] | MP10 |
| (xi) Personnel classification affiliating with the training required | Zawawi and Kamaruzzaman [4]; Jardine et al. [135] | MP11 |
| CMMS performance | Ismail [136]; Balouei et al. [10]; Amankwah et al. [26]; Tumiran [88]; Abdullahi and wan Yusoff [89]; Parker [90] | |
| (i) Service quality | Cupello [91]; Asubonteng et al. [92]; Haddad et al. [93]; Khan and Tabassum [94]; Myeda et al. [5] | CMP1 |
| (ii) Proportion of planned versus achieved | Panuwatwanich [137]; Muchiri et al. [95] | CMP2 |
| (iii) Overall equipment efficiency | Muchiri et al. [95]; Eyerusalem [123] | CMP3 |
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