diff --git a/lib/src/aasStore.ts b/lib/src/aasStore.ts
index b9c892a..c0e9c86 100644
--- a/lib/src/aasStore.ts
+++ b/lib/src/aasStore.ts
@@ -2,6 +2,8 @@
 import { readdirSync, readFileSync } from "fs";
 import { types, jsonization } from "@aas-core-works/aas-core3.0-typescript";
 
+const GLOBALLY_IDENTIFIABLES = [types.KeyTypes.GlobalReference, types.KeyTypes.AssetAdministrationShell, types.KeyTypes.ConceptDescription, types.KeyTypes.Identifiable, types.KeyTypes.Submodel]
+
 export default class AASStore {
     private static instance: AASStore;
     private envs: Array<types.Environment> = [];
@@ -57,11 +59,8 @@ export default class AASStore {
 
     public findAASById(id: string): types.AssetAdministrationShell | null {
         for (const env of this.envs) {
-            if (env.assetAdministrationShells === null) continue;
-
-            for (const aas of env.assetAdministrationShells) {
-                if (aas.id === id) return aas;
-            }
+            const aas = AASStore.findAASById(env, id);
+            if(aas) return aas;
         }
 
         return null;
@@ -69,22 +68,78 @@ export default class AASStore {
 
     public findSMById(id: string): types.Submodel | null {
         for (const env of this.envs) {
-            if (env.submodels === null) continue;
-
-            for (const sm of env.submodels) {
-                if (sm.id === id) return sm;
-            }
+            const sm = AASStore.findSMById(env, id);
+            if (sm) return sm;
         }
 
         return null;
     }
 
-    public findElement(submodelId: string, elementIdShort: string): types.Class | null {
-        const sm = this.findSMById(submodelId);
-        if (!sm) return null;
+    public findSMByIdShort(id: string): types.Submodel | null {
+        for (const env of this.envs) {
+            const sm = AASStore.findSMByIdShort(env, id);
+            if (sm) return sm;
+        }
 
-        for (const element of sm.descend()) {
-            if ((element as any).idShort === elementIdShort) return element;
+        return null;
+    }
+
+    public resolveReference(ref: types.Reference): types.Class | null {
+        for (const env of this.envs) {
+            const e = AASStore.resolveReference(env, ref);
+            if (e !== null) return e;
+        }
+
+        return null;
+    }
+
+    public findElement(checkFunction: (element: types.Class) => boolean): types.Class | null {
+        for (const env of this.envs) {
+            const e = AASStore.findElement(env, checkFunction)
+            if (e !== null) return e;
+        }
+
+        return null;
+    }
+
+    public static findAASById(environment: types.Environment, id: string): types.AssetAdministrationShell | null {
+        if (environment.assetAdministrationShells === null) return null;
+
+        return (environment.assetAdministrationShells.find(aas => aas.id === id)) ?? null;
+    }
+
+    public static findSMById(environment: types.Environment, id: string): types.Submodel | null {
+        if (environment.submodels === null) return null;
+
+        return (environment.submodels.find(sm => sm.id === id)) ?? null;
+    }
+
+    public static findSMByIdShort(environment: types.Environment, id: string): types.Submodel | null {
+        if (environment.submodels === null) return null;
+
+        return (environment.submodels.find(sm => sm.idShort === id)) ?? null;
+    }
+
+    public static resolveReference(env: types.Environment, ref: types.Reference): types.Class | null {
+        if (ref.type === types.ReferenceTypes.ExternalReference) return null; // Not implemented
+
+        let current: types.Class | null = null;
+        for (const key of ref.keys) {
+            if (current === null && !GLOBALLY_IDENTIFIABLES.includes(key.type)) break;
+
+            if (current === null) {
+                current = AASStore.findElement(env, element => (element as any).id === key.value)
+            } else {
+                current = AASStore.findElement(current, element => (element as any).idShort === key.value)
+            }
+        }
+
+        return current;
+    }
+
+    public static findElement(environment: types.Class, checkFunction: (element: types.Class) => boolean): types.Class | null {
+        for (const element of environment.descend()) {
+            if (checkFunction(element)) return element;
         }
 
         return null;
diff --git a/lib/src/example_modules/httpInterfaceServer.ts b/lib/src/example_modules/httpInterfaceServer.ts
index feb6584..1c30712 100644
--- a/lib/src/example_modules/httpInterfaceServer.ts
+++ b/lib/src/example_modules/httpInterfaceServer.ts
@@ -49,4 +49,8 @@ export default class HTTPInterfaceServer extends AASInterfaceServer<Config> {
     protected findElementByRequest(request: Request) {
         
     }
+
+    private createRoutes()/*: express.Router*/ {
+        // TODO
+    }
 }
\ No newline at end of file
diff --git a/lib/src/index.ts b/lib/src/index.ts
index e7516b8..75dd4bc 100644
--- a/lib/src/index.ts
+++ b/lib/src/index.ts
@@ -1,23 +1,18 @@
-import { readFileSync } from "fs";
-import * as aasCore from "@aas-core-works/aas-core3.0-typescript";
+import AASStore from "./aasStore";
+import type { SubmodelElementCollection, SubmodelElementList, ReferenceElement, Reference } from "@aas-core-works/aas-core3.0-typescript/dist/types/types";
 
-const aasFile = readFileSync("../AID-AIMC-Full-Example-20230911T1608.json", {encoding: "utf-8"});
-const aasJSON = JSON.parse(aasFile);
+const store = AASStore.getInstance();
+store.addAASByPath("../AID-AIMC-Full-Example-20230911T1608.json");
 
-const env = aasCore.jsonization.environmentFromJsonable(aasJSON);
+const aid = store.findSMByIdShort("AssetInterfacesDescription");
+const aimc = store.findSMByIdShort("AssetInterfacesMappingConfiguration");
 
-if (env.error || !env.value || !env.value.assetAdministrationShells || !env.value.submodels) throw new Error("Invalid AAS file");
+if (!aid || !aimc) throw new Error("Invalid AAS file");
 
-const aas = env.value.assetAdministrationShells[0];
-const submodels = env.value.submodels;
+const AIMCEndpointRef = (((aimc.submodelElements?.at(0) as SubmodelElementList)
+    .value?.at(0) as SubmodelElementCollection)
+    .value?.at(0) as ReferenceElement)
+    .value as Reference;
 
-const aid = submodels[0].submodelElements
-if (aid === null) throw new Error("Invalid AAS file");
+// console.log(store.resolveReference(AIMCEndpointRef));
 
-console.log(((aid[0] as aasCore.types.SubmodelElementList).value as aasCore.types.SubmodelElementCollection[])[0])
-
-/*
-for (const something of aas.descend()) {
-    console.log(something);
-    console.log("---------------------------------------");
-}*/
diff --git a/lib/src/multimessageBroker.ts b/lib/src/multimessageBroker.ts
index 4ce3e56..7e9858f 100644
--- a/lib/src/multimessageBroker.ts
+++ b/lib/src/multimessageBroker.ts
@@ -9,7 +9,7 @@ class MultiMessageBroker {
 
     private serverInterfaces: Array<typeof AASInterfaceServer> = [];
     private serverInterfaceConfigs: Array<any> = [];
-    private serverInstances: Array<AASInterfaceServer<typeof this.serverInterfaceConfigs[keyof typeof this.serverInterfaceConfigs]>|null> = [];
+    private serverInstances: Array<AASInterfaceServer<typeof this.serverInterfaceConfigs[number]>|null> = [];
 
     private connectorInterfaces: Array<typeof InterfaceConnectionObject> = [];
     private connectorConfigs: Array<any> = [];
diff --git a/lib/src/parser/AIDParser.ts b/lib/src/parser/AIDParser.ts
new file mode 100644
index 0000000..4570ce6
--- /dev/null
+++ b/lib/src/parser/AIDParser.ts
@@ -0,0 +1,150 @@
+import * as aasCore from "@aas-core-works/aas-core3.0-typescript";
+import type { AssetInterfaceDescription, EndpointMetadata, InterfaceDescription, InterfaceMetadata, InterfaceAction, InterfaceEvent, InterfaceProperty, InterfacePropertyForm } from "types/aidConf";
+import { AvailableEndpoint, endpointAvailable } from "types/common";
+import AASStore from "aasStore";
+
+export default class AIDParser {
+
+    public static parse(env: aasCore.types.Environment): AssetInterfaceDescription | null {
+        const sm = AASStore.findSMByIdShort(env, "AssetInterfaceDescription");
+        if (sm === null || sm.submodelElements === null) return null;
+
+        const parsed = {} as AssetInterfaceDescription;
+
+        sm.submodelElements.forEach(e => {
+            if (!aasCore.types.isSubmodelElementList(e) || !e.idShort || !e.value) return;
+
+            const endpointProto = endpointAvailable(e.idShort);
+            if (!endpointProto) return;
+
+            parsed[endpointProto] = e.value.map(element => {
+                if (!aasCore.types.isSubmodelElementCollection(element)) return null;
+
+                return AIDParser.parseAIDEntry(element, endpointProto);
+            }).filter(e => e !== null) as InterfaceDescription[];
+        });
+
+        return parsed;
+    }
+
+    private static parseAIDEntry(entry: aasCore.types.SubmodelElementCollection, endpointProtocol?: AvailableEndpoint): InterfaceDescription | null {
+        const title = AASStore.findElement(entry, element => (element as any).idShort.toLocaleLowerCase() === "title");
+        const titleString = title !== null && aasCore.types.isProperty(title) && title.value ? title.value : "";
+
+        const ep = AASStore.findElement(entry, element => (element as any).idShort.toLocaleLowerCase() === "endpointmetadata");
+        const im = AASStore.findElement(entry, element => (element as any).idShort.toLocaleLowerCase() === "interfacemetadata");
+        if (ep === null || !aasCore.types.isSubmodelElementCollection(ep) || !ep.value || im === null || !aasCore.types.isSubmodelElementCollection(im) || !im.value) return null;
+
+        const parsedEp = AIDParser.parseEndpointMetaData(ep, endpointProtocol);
+        const parsedIm = AIDParser.parseInterfaceMetaData(im, endpointProtocol);
+        if (parsedEp === null || parsedIm === null) return null;
+
+        return {
+            title: titleString,
+            EndPointMetadata: parsedEp,
+            InterfaceMetadata: parsedIm
+        } as InterfaceDescription;
+
+    }
+
+    public static parseEndpointMetaData(endpoint: aasCore.types.SubmodelElementCollection, endpointProtocol?: AvailableEndpoint): EndpointMetadata | null {
+        if (!endpoint.value || endpoint.idShort?.toLocaleLowerCase() !== "endpointmetadata") return null;
+
+        const parsed = {} as EndpointMetadata;
+
+        for (const key of ["base", "contentType"]) {
+            const prop = AASStore.findElement(endpoint, element => (element as any).idShort.toLocaleLowerCase() === key.toLocaleLowerCase());
+            if (prop === null || !aasCore.types.isProperty(prop) || !prop.value) return null; // Mandatory
+            else parsed[key] = prop.value;
+        }
+
+        // TODO 
+        // Other values based on endpoint protocol
+
+        return parsed;
+    }
+
+    public static parseInterfaceMetaData(interfaceMeta: aasCore.types.SubmodelElementCollection, endpointProtocol?: AvailableEndpoint): InterfaceMetadata | null {
+        if (!interfaceMeta.value || interfaceMeta.idShort?.toLocaleLowerCase() !== "interfacemetadata") return null;
+
+        const parsed = {
+            properties: [],
+            actions: [],
+            events: []
+        } as InterfaceMetadata;
+
+        const prop = AASStore.findElement(interfaceMeta, element => (element as any).idShort.toLocaleLowerCase() === "properties");
+        if (prop === null || !aasCore.types.isSubmodelElementList(prop) || !prop.value) return null; // Mandatory
+        for (const element of prop.value) {
+            if (!aasCore.types.isSubmodelElementCollection(element)) continue;
+            const parsedProp = AIDParser.parseInterfaceMetadataProperty(element, endpointProtocol);
+            if (parsedProp === null) continue;
+            parsed.properties.push(parsedProp);
+        }
+
+        const actions = AASStore.findElement(interfaceMeta, element => (element as any).idShort.toLocaleLowerCase() === "actions");
+        if (actions === null || !aasCore.types.isSubmodelElementList(actions) || !actions.value) return null; // Mandatory
+        for (const element of actions.value) {
+            if (!aasCore.types.isSubmodelElementCollection(element)) continue;
+            const parsedAction = AIDParser.parseInterfaceMetadataProperty(element, endpointProtocol);
+            if (parsedAction === null) continue;
+            parsed.actions.push(parsedAction);
+        }
+
+        return parsed as InterfaceMetadata;
+    }
+
+    public static parseInterfaceMetadataProperty(prop: aasCore.types.SubmodelElementCollection, endpointProtocol?: AvailableEndpoint): InterfaceProperty | null {
+        if (!prop.value || prop.idShort?.toLocaleLowerCase() !== "properties") return null;
+
+        const parsed = {} as InterfaceProperty;
+
+        // This does not matter in any way for the interface
+        /* for (const key of ["title", "observeable", "type"]) {
+            const prop = AASStore.findElement(prop, element => (element as any).idShort.toLocaleLowerCase() === key.toLocaleLowerCase());
+            if (prop === null || !aasCore.types.isProperty(prop) || !prop.value) continue; // Not mandatory
+            else parsed[key] = prop.value;
+        } */
+
+        const forms = AASStore.findElement(prop, element => (element as any).idShort.toLocaleLowerCase() === "forms");
+        if (forms === null || !aasCore.types.isSubmodelElementList(forms) || !forms.value) return null; // Mandatory
+        for (const element of forms.value) {
+            if (!aasCore.types.isSubmodelElementCollection(element)) continue;
+            const parsedForm = AIDParser.parseInterfaceMetadataPropertyForm(element, endpointProtocol);
+            if (parsedForm === null) continue;
+            parsed.forms.push(parsedForm);
+        }
+
+        // TODO 
+        // Other values based on endpoint protocol
+
+        return parsed;
+    }
+
+    private static parseInterfaceMetadataPropertyForm(form: aasCore.types.SubmodelElementCollection, endpointProtocol?: AvailableEndpoint): InterfacePropertyForm | null {
+        if (!form.value) return null;
+
+        const parsed = {} as any;
+
+        for (const key of ["href", "contentType"]) {
+            const prop = AASStore.findElement(form, element => (element as any).idShort.toLocaleLowerCase() === key.toLocaleLowerCase());
+            if (prop === null || !aasCore.types.isProperty(prop) || !prop.value) return null; // Mandatory
+            else parsed[key] = prop.value;
+        }
+
+        // TODO 
+        // Other values based on endpoint protocol
+
+        return parsed as InterfacePropertyForm;
+    }
+
+    public static parseInterfaceMetadataAction(action: aasCore.types.SubmodelElementCollection, endpointProtocol?: AvailableEndpoint): InterfaceAction | null {
+        // TODO
+        return null;
+    }
+
+    public static parseInterfaceMetadataEvent(event: aasCore.types.SubmodelElementCollection, endpointProtocol?: AvailableEndpoint): InterfaceAction | null {
+        // TODO
+        return null;
+    }
+}
\ No newline at end of file
diff --git a/lib/src/parser/AIMCMapper.ts b/lib/src/parser/AIMCMapper.ts
new file mode 100644
index 0000000..2f3b4b9
--- /dev/null
+++ b/lib/src/parser/AIMCMapper.ts
@@ -0,0 +1,3 @@
+export class AIMCMapper {
+    
+}
\ No newline at end of file
diff --git a/lib/src/types/aidConf.ts b/lib/src/types/aidConf.ts
new file mode 100644
index 0000000..a7a61ea
--- /dev/null
+++ b/lib/src/types/aidConf.ts
@@ -0,0 +1,86 @@
+import { AvailableEndpoint } from "./common";
+
+export type AssetInterfaceDescription = {
+    [key in AvailableEndpoint]: InterfaceDescription[];
+};
+
+export type InterfaceDescription = {
+    title: string;
+    //created?: Date;
+    //modified?: Date;
+    //support?: string;
+    //externalDescriptor: never; // We don't use these (atm)
+    EndPointMetadata: EndpointMetadata;
+    InterfaceMetadata: InterfaceMetadata;
+}
+
+export type EndpointMetadata = {
+    base: string; // This is the connection base string
+    contentType: string;
+    //securityDefinition?: any; // Will currently not be used
+    [key: string]: any; // This is for the additional metadata
+}
+
+export type InterfaceMetadata = {
+    properties: InterfaceProperty[];
+    actions: InterfaceAction[];
+    events: InterfaceEvent[];
+}
+
+export type InterfaceProperty = {
+    title?: string;
+    observable?: boolean;
+    forms: InterfacePropertyForm[];
+    type?: string;
+    enum?: string[];
+    const?: any;
+    default?: any;
+    //unit?: string;
+    minimum?: number; // TODO muss das gecapped werden?
+    maximum?: number;
+    minLength?: number;
+    maxLength?: number;
+    //items?: any[];
+    minItems?: number;
+    maxItems?: number;
+}
+
+export type InterfacePropertyForm = InterfacePropertyFormHTTP | InterfacePropertyFormMQTT | InterfacePropertyFormModbus;
+
+type InterfacePropertyFormBase = {
+    href: string;
+    contentType: string;
+}
+
+type InterfacePropertyFormHTTP = InterfacePropertyFormBase & {
+    methodName: string;
+    headers?: Record<string, string>;
+}
+
+type InterfacePropertyFormModbus = InterfacePropertyFormBase & {
+    function: "readCoil" |
+        "readDeviceIdentification" |
+        "readDiscreteInput" |
+        "readHoldingRegisters" |
+        "readInputRegisters" |
+        "writeMultipleCoils" |
+        "writeMultipleHoldingRegisters" |
+        "writeSingleCoil" |
+        "writeSingleHoldingRegister";
+    entity?: "Coil" | "DiscreteInput" | "HoldingRegister" | "InputRegister";
+    zeroBasedAddressing?: boolean;
+}
+
+type InterfacePropertyFormMQTT = InterfacePropertyFormBase & {
+    retain?: boolean;
+    controlPacket: "publish" | "subscribe" | "unsubscribe";
+    qos?: 0 | 1 | 2;
+}
+
+export type InterfaceAction = {
+    // TODO
+}
+
+export type InterfaceEvent = {
+    // TODO
+}
\ No newline at end of file
diff --git a/lib/src/types/aimcConf.ts b/lib/src/types/aimcConf.ts
new file mode 100644
index 0000000..f081bff
--- /dev/null
+++ b/lib/src/types/aimcConf.ts
@@ -0,0 +1,14 @@
+import type { types } from "@aas-core-works/aas-core3.0-typescript";
+import { AvailableEndpoint } from "./common";
+
+export type AssetInterfaceMappingConfiguration = Record<AvailableEndpoint, MappingConfEntry[]>;
+
+type MappingConfEntry = {
+    EndpointMetaDataReference: types.ReferenceElement;
+    MappingConfiguration: MappingConfiguration;
+}
+
+type MappingConfiguration = {
+    InterfaceMetaDataReference: types.ReferenceElement;
+    SourceSinkMappings: types.RelationshipElement[];
+}
\ No newline at end of file
diff --git a/lib/src/types/common.ts b/lib/src/types/common.ts
new file mode 100644
index 0000000..1494d78
--- /dev/null
+++ b/lib/src/types/common.ts
@@ -0,0 +1,8 @@
+export const availableEndpoints = ["HTTP", "MQTT", "Modbus"] as const;
+export type AvailableEndpoint = typeof availableEndpoints[number];
+
+export function endpointAvailable(endpoint: string): AvailableEndpoint | null {
+    const idx = availableEndpoints.map(e => e.toLocaleLowerCase()).findIndex(e => e === endpoint.toLocaleLowerCase());
+    if (idx === -1) return null;
+    return availableEndpoints[idx];
+}
\ No newline at end of file