Concentration-response data from 18 ER HTS assays were integrated into an ER model
, the output of which provides a score of potential ER agonist and antagonist activity, chemical potency, and a measure of assay-specific false positive activity of each chemical run in ToxCast[TM] (Judson et al.
Aqua Data Studio's Entity-Relationship Modeler has also been extended, and now has the ability to convert or translate an ER model
from one database to another, along with the ability to export to ERX format, import object schemas into existing databases and compare schema objects of different models within the same or different databases.
For example, the birthdate and deathdate attributes in the Barker ER model
shown in Figure 1.
Strategies in modeling with regard to the data warehouse ER model
, the data warehouse dimensional model and the independent data marts as described by Jukic (2006) are explored and practiced in the classroom setting.
The recent Unified Modeling language-2 (UML 2) has relation with the ER model
and this is deployed in the chapter on Unified Modelling Language.
The student responses to the questionnaire suggested that most students appreciated the feature of being able to view the complete ER model
The combination of 'employment arrangements' and 'value of HR to firm' form the foundation of the ER model
presented in Figure 2.
Since its inception, the ER model
has undergone many additions and enhancements that increase its expressive power and obtain better conceptual designs [Batini et al.
For example, Peter Chen's original ER model
offers Entity, Relationship and Attribute as primitive terms, supports a limited form of classification (because entities and relationships are instances of entity and relationship types), offers primitive operations for creating new entity or relationship types or instances thereof, and supports cardinality constraints for relationships, such as "every child has up to two parents.
The predictions in terms of receptor binding potency are addressed for the ER model
Tenders are invited for Raising of ER Model
Plantation during 2016-17 Sagar Range, Anvatti Range and Ambligola
In the ER model
, for example, Elmasri and Navathe  sometimes represent them as weak entity types and sometimes as attributes.